/*
 *
 * (c) Copyright Ascensio System Limited 2010-2018
 *
 * This program is freeware. You can redistribute it and/or modify it under the terms of the GNU 
 * General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html). 
 * In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that 
 * Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
 *
 * THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
 * FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
 *
 * You can contact Ascensio System SIA by email at sales@onlyoffice.com
 *
 * The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display 
 * Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
 *
 * Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains 
 * relevant author attributions when distributing the software. If the display of the logo in its graphic 
 * form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE" 
 * in every copy of the program you distribute. 
 * Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
 *
*/


using System;
using ASC.Xmpp.Core.protocol.Base;
using ASC.Xmpp.Core.protocol.client;
using ASC.Xmpp.Core.protocol.extensions.multicast;
using ASC.Xmpp.Server.Handler;
using ASC.Xmpp.Server.Streams;

namespace ASC.Xmpp.Server.Services.Multicast
{
	[XmppHandler(typeof(Stanza))]
	class MulticastHandler : XmppStanzaHandler
	{
		public override void HandleMessage(XmppStream stream, Message message, XmppHandlerContext context)
		{
			HandleMulticastStanza(stream, message, context);
		}

		public override void HandlePresence(XmppStream stream, Presence presence, XmppHandlerContext context)
		{
			HandleMulticastStanza(stream, presence, context);
		}


		private void HandleMulticastStanza(XmppStream stream, Stanza stanza, XmppHandlerContext context)
		{
			var addresses = stanza.SelectSingleElement<Addresses>();
            if (addresses != null)
            {
                var jids = addresses.GetAddressList();
                
                addresses.RemoveAllBcc();
                Array.ForEach(addresses.GetAddresses(), a => a.Delivered = true);

                var handlerManager = (XmppHandlerManager)context.ServiceProvider.GetService(typeof(XmppHandlerManager));
                foreach (var to in jids)
                {
                    stanza.To = to;
                    handlerManager.ProcessStreamElement(stanza, stream);
                }
            }
		}
	}
}